The lowest altitude at certain fixes at which an aircraft must cross when proceeding in the direction of a higher minimum en route IFR altitude (MEA).
Source FAA Pilot/Controller Glossary · checked 2026-08-25
The lowest altitude at certain fixes at which an aircraft must cross when proceeding in the direction of a higher minimum en route IFR altitude (MEA).
Source FAA Pilot/Controller Glossary · checked 2026-08-25